CT
Lytic lesion centred on the left posterior mandible with destruction of the alveolus, expansion of the medullary cavity with cortical thinning and a cortical breach laterally. Low-density material has replaced normal marrow. Increased sclerosis seen anteriorly to the left first mandibular molar.
Absent left submandibular gland, absent left internal jugular vein and absent superior left sternocleidomastoid muscle. Loss of fat planes in the left neck.